Valve.



J. S. CHAMBERS VALVE. APPLICATION FILED JULY 28, 1910.

Patented May 23; 191 1.

r coma-imam .LSEPH eeacee.

Specification of Letters Patent.

Patented May A33, Twill.

Applicationflled .T u1y 28, 1910. Serial No. 574,287.

To all whom it may concern? Be it known that I, JO N S. CHAMBERS, acitizen of the United States, and resident of Rocky- Mount, in thecounty of Nash and State of North Carolina, have invented a new anduseful Improvement in Valves, of which the following is a specification.

My invention relates to valves with the ohjectin view of providingeffective metahic packing for the valve rod and means for Operating thevalve without moving the valve operating rod longitudinally within thepaclrin I :A practical embodiment of the invention is represented in theaccompanying drawings in which,

Figure 1 represents a valve and its operating stem and rod vinconnection with. a pipe, the view being a central section through thevalve and pipe. Fig. 2 is .a transverse section of the same in the planeof the line A-A of Fig. 1. Fig. 3 is a similar View of the valve bonnetand part of its. 7 operating stem and rod, showing a modifiedetrzurture, and Flg. lls a section through a valve and pipe, showing afurther modificae tiiu'n deferring to the form shown in Figs. 1 and 2, 1represents a pipe or coupling provided with a diaphragm 2 in which therelf-J located a valve seat 3, in the present instance, the seat 3 beingan annular ring pro- .vided with. an external screw-thread for scr wing'into the diaphragm 2. The head.

denoted by at and is umvided with an annularllangc 53 tor partiallyembracing the Y tapered upper edge oi the valve seat 3 when closed. Theelem of the valve is denoted by 6. The said stem is provnled at one endwith a flange 7 by iii-earls of which it is eaiveled in anundercutnochet 8 in the valve head 4-, The Said Sl'fiiltlH :turthcrprovided with laterally extending wings 9 and 10 adapted to enter andslide in coves l1 and 12 in the lower end of a llfflil i'l' til. Thelower end oi the hounct i in. in this iii-stain externally S-"1't'.\\'-illi( :iriul. as at 14-, Jo-r engaging the internal :acrcw-threadedhose 1:? on the pipe or coupling: 1. The upgtORltO end of the vulnl- =iui; h; provided mu. :1 m "dllltfi'lll it and :uluplui to enpage a at'-k\-llii'riiel l SGCliQt l! -ler tat-e of u coin: if? u: into with thoii eratiug rod li which open of the bonnet 13 andis there provided. witha hand wheel 20 for rotating the rod 1.9, and hence the stepped cone 18.The hand wheel 20 is set on a squared upper end 21 of the rod 19 andheld in position by means of a nut 22 and jam nut 23. A Washer 24 may beinterposed between the nut 22 and the hulo of the hand Wheel 20. The hubof the hand wheel 20 is provided on its end toward the bonnet 13, with arecess 25 in which there is located a coil spring 26 hearing against theouter end of the bonnet 13,

and the bottom of the recess 25 in the nth ofthe hand wheel 20, andhaving a tendency to drawthe operating rod .9 at all times outwardly andhence thestcppcd cone 18 against its seat. The seat for the stepped cone18 is formed of some soft metal, preterahly Babbitt metal, denoted by27, which metal is castwithin the bonnet 13, with its inner wallconforming to the cxti-u'ior face of the stepped cone 18. in. operation,the stepped cone 18 and operating rod It) do not change their relationlo'ngitiulinally with. re spect to the metallic packing Q7. hut eimplyrotate therein, thc stepped cone l8 lazing! drawn tightly toward itsseat by the spr ng 26. As the rod 19 is rotated in one direc tion, thevalve stem 6, together with the valve head 4, will he liftedand the hradi. thereby raised from its seat. It to permit the flow of fluid alongthrough the plpv m (mu-- pling 1. Wham the hand wheel h! iu-iuhrn willbe "forced to its seat. The wire r (i held from rotating hy mourn: ofwings 9 and 10 engaging the gromm it and 19.. V

In the -forn i shown in Fig. 1%, the nutand E23, together with the fl-l.relied upon .to hold the. huapcd coirl i against. its Seat of metalpacking oi the hand wheel 90 heing, in without a recess and the springpensed with. As a matter of far 7 1 important that the stc 'iprd conesnugly against. its; seat steam at the opening of the valve, slzuar sureof the fluid will tend to stepped cone 1-? toward its seat W.

thc'iulrc open ..1

of tho thud agar; lunar out! m in teppml cone lending; tr 5 to it )5! aspremium is inv this form a threaded engagement with the boss 29 and Inected with the valve stem and means for relied upon to hold the valvestem 6 against rotating, and the bonnet 28, corresponding to the bonnet13, is held to the boss 29 on the pipe by .means of an internallyscrewthreaded flanged nut 30 which has a screwits flange overlaps aflange 31 at the lower edge of the bonnet. d

In the form shown in Fig. 4, the hand wheel 20 is replaced by a crank 32for ro-t tating the valve operating rod 33, corresponding to the valveoperating rod 19, but in this instance, extended inwardly from thestepped cone 18 and provided with a crank 34 by means of which it isconnected to the valve stem 35 by means of a pintle 36. This latterstructure is particularly well adapted to use in connection with alocomotive, marine or stationary throttle valve.

In all the forms shown, the soft metallic packing is fixed in the glandand the stepped cone on the valve operating rod is held in contact withthe inner face of the packing and is allowed simply a rotary' motionwithin the packing in order to operate the valve toward and away fromits seat.

What I claim is: v d 1. A valve operating rod provided with a steppedcone fixed to rotate therewith, a soft metal packing fixed in positionto engage the surface of the stepped cone, a valve stem having ascrew-threaded engagement with the stepped cone, a valve headconoperating the valve operating rod.

2. A valve operating rod provided with a stepped cone fixed to rotatetherewith, a bonnet provided with a soft metal packing fixed therein inposition to engage the surface of the stepped cone, a valve stem havinga screw-threaded engagement with the said stepped cone and provided witha wing engaged with the bonnet'to prevent rotation- 1-,0f the valvestem, a valve head connected with the valve stem and means for rotatlng'the valve operating rod. I

3. A valve operating rod provided with a stepped cone, a bonnet'providedwith'a soft metal packing fixed in position to engage the surface of thestepped cone, a valve stem having a screw-threaded engagement with thestepped cone, means for preventing the stem from rotating, a valve headswiveled to the stem and means for rotating the valve operating rod.

4. A valve' operating ,rod provided with a cone, a-bdnnet provided witha soft metal packing in position to engage the surfao'e'of v the cone, avalve stem having a screw threaded engagement with the cone, means forpreventing the stem from rotating, a valve head connected with thetemand means for rotating the valve opei ting rod.

In testimony, that I claim the foregoing as my invention, I have signedmy name in presence of two witnesses, this twenty-fifth;v

day of July 1910. v

JOHN S. CHAMBERS. Witnesses: v

S.' S. HENEsY, J. H. PAInTER.

